RELEASE NOTES FOR KOHA 25.05.11

02 Jun 2026

Koha is the first free and open source software library automation package (ILS). Development is sponsored by libraries of varying types and sizes, volunteers, and support companies from around the world. The website for the Koha project is:

Koha 25.05.11 can be downloaded from:

Installation instructions can be found at:

Koha 25.05.11 is a bugfix/maintenance release.

It includes 1 enhancements, 34 bugfixes.

System requirements

You can learn about the system components (like OS and database) needed for running Koha on the community wiki.

Security bugs

Bugfixes

Architecture, internals, and plumbing

Critical bugs fixed

Cataloging

Other bugs fixed

Circulation

Critical bugs fixed

Other bugs fixed

Fines and fees

Critical bugs fixed

Notices

Other bugs fixed

OPAC

Other bugs fixed

Patrons

Critical bugs fixed

Other bugs fixed

Reports

Other bugs fixed

SIP2

Other bugs fixed

Searching

Other bugs fixed

Staff interface

Other bugs fixed

System Administration

Other bugs fixed

Other bugs fixed

Test Suite

Other bugs fixed

Documentation

The Koha manual is maintained in Sphinx. The home page for Koha documentation is

The Git repository for the Koha manual can be found at

Translations

Complete or near-complete translations of the OPAC and staff interface are available in this release for the following languages:

- Arabic (ar_ARAB) (92%) - Armenian (hy_ARMN) (100%) - Bulgarian (bg_CYRL) (100%) - Chinese (Simplified Han script) (83%) - Chinese (Traditional Han script) (97%) - Czech (67%) - Dutch (87%) - English (100%) - English (New Zealand) (61%) - English (USA) - Finnish (99%) - French (99%) - French (Canada) (99%) - German (100%) - Greek (66%) - Hindi (94%) - Italian (81%) - Norwegian Bokmål (71%) - Persian (fa_ARAB) (93%) - Polish (100%) - Portuguese (Brazil) (99%) - Portuguese (Portugal) (88%) - Russian (93%) - Slovak (59%) - Spanish (98%) - Swedish (89%) - Telugu (65%) - Turkish (80%) - Ukrainian (74%) - Western Armenian (hyw_ARMN) (60%)

Partial translations are available for various other languages.

The Koha team welcomes additional translations; please see

For information about translating Koha, and join the koha-translate list to volunteer:

The most up-to-date translations can be found at:

Release Team

The release team for Koha 25.05.11 is

Credits

We thank the following libraries, companies, and other institutions who are known to have sponsored new features in Koha 25.05.11

- Athens County Public Libraries - [Büchereizentrale Schleswig-Holstein](https://www.bz-sh.de) - Ignatianum University in Cracow - Lund University Library

We thank the following individuals who contributed patches to Koha 25.05.11

- Kevin Carnes (1) - Nick Clemens (3) - David Cook (9) - Jake Deery (2) - Paul Derscheid (3) - Roman Dolny (2) - Jonathan Druart (9) - Lucas Gass (11) - Kyle M Hall (4) - Owen Leonard (1) - David Nind (1) - Martin Renvoize (5) - Marcel de Rooy (3) - Lisette Scheer (1) - Slava Shishkin (1) - Hammat Wele (1)

We thank the following libraries, companies, and other institutions who contributed patches to Koha 25.05.11

- Athens County Public Libraries (1) - [ByWater Solutions](https://bywatersolutions.com) (19) - David Nind (1) - Independant Individuals (1) - [Jezuici](https://jezuici.pl/) (2) - Koha Community Developers (9) - [LMSCloud](https://www.lmscloud.de) (3) - Lund University Library (1) - [OpenFifth](https://openfifth.co.uk) (7) - [Prosentient Systems](https://www.prosentient.com.au) (9) - Rijksmuseum, Netherlands (3) - [Solutions inLibro inc](https://inlibro.com) (1)

We also especially thank the following individuals who tested patches for Koha

- Pedro Amorim (1) - Scott Barter (1) - Matt Blenkinsop (1) - Nick Clemens (2) - David Cook (6) - Benjamin Daeuber (1) - Paul Derscheid (1) - Roman Dolny (3) - Jonathan Druart (7) - Laura Escamilla (32) - Katrin Fischer (3) - Andrew Fuerste-Henry (6) - Lucas Gass (46) - Kyle M Hall (2) - Emily Lamancusa (1) - Brendan Lawlor (2) - Owen Leonard (3) - David Nind (11) - Sanjar Tulkinov Anvar o'g'li (1) - Jacob O'Mara (3) - Nic Olsson (1) - Martin Renvoize (3) - Phil Ringnalda (2) - Marcel de Rooy (9)

We regret any omissions. If a contributor has been inadvertently missed, please send a patch against these release notes to koha-devel@lists.koha-community.org.

Revision control notes

The Koha project uses Git for version control. The current development version of Koha can be retrieved by checking out the main branch of:

The branch for this version of Koha and future bugfixes in this release line is 25.05.x-security.

Bugs and feature requests

Bug reports and feature requests can be filed at the Koha bug tracker at:

He rau ringa e oti ai. (Many hands finish the work)

Autogenerated release notes updated last on 02 Jun 2026 21:03:46.